字符串操作

包含，开头，结尾

s1 := "hello world"
s2 "= "hello"
b1 := strings.Contains(s1,s2) //是否包含
b2 := strings.HasPrefix(s1,s2) //是否开头
b3 := strings.HasSuffix(s1,s2) //是否结尾

整型操作

整型转字符串

s := ""
s = strconv.Itoa(i)